EDNE June 2012 - (Page 46)

in Smart Energy Metering Applications Digital isolation B y P e t r e M i n c i u n e s c u a nd Bri a n Kennedy • a na lo g devi c es c urrent transforMers that are dc-tolerant have long Been used to sense ac currents in sMart energy Meters, But they have drawBacKs and can Be exPensive. for soMe aPPlications, resistive shunts MaKe Better current sensors as they are inexPensive, highly linear, and iMMune to Magnetic influences. unfortunately, resistive shunts do not Possess the inherent electrical isolation of current transforMers. in aPPlications such as sMart energy Meters that require isolation, digital isolators with isolated Power technology coMBined with shunt resistors offer a good solution to this ProBleM. 46 EDN EUROPE | JUNE 2012 www.edn-europe.com http://www.edn-europe.com

Table of Contents for the Digital Edition of EDNE June 2012

Cover
Agilent Technologies
Contents
International Rectifier
RS Components
Masthead
International Rectifier
Comment
Pulse
Analog Devices
Digi-Key
Farnell
NXP
Test & Measurement
Silicon Labs
Digi-Key
Test-driven development for embedded C: why debug?
Digi-Key
Baker’s best
Cover story
Rohde & Schwarz
Rohde & Schwarz
Rohde & Schwarz
Rohde & Schwarz
Rohde & Schwarz
Pico-projector design uses color LEDs
Digital isolation in smart energy metering applications
Mechatronics in design
Teardown
Design Idea
Product Roundup
Tales from the cube

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